Hair straightener apparatus



FIG. 1 is a perspective view of the hair straightener apparatus inaccordance with the principles of the present disclosure;

FIG. 2 is a left side elevation view of the hair straightener apparatus;

FIG. 3 is a right side elevation view of the hair straightenerapparatus;

FIG. 4 is a front elevation view of the hair straightener apparatus;

FIG. 5 is a top plan view of the hair straightener apparatus; and,

FIG. 6 is a bottom plan view of the hair straightener apparatus.

The broken lines shown in the drawings illustrate a portion of the hairstraightener apparatus and form no part of the claimed design.

CLAIM The ornamental design for the hair straightener apparatus, asshown and described.